Hi, I have a little tikes hummer 2, model 441M. I dont have a battery for it and wanted to know if I can just hard wire it to an existing 12v battery i use for another power wheels. I dont want to pay for the wiring harness. I will add a 30amp inline fuse and charge the battery with an external charger. If you have other creative solutions please let me know. I have multiple battery connections for Power wheels vehicles but dont have the side that connects to the vehicle, only the battery side.